METHOD AND SECURITY SUBSTRATE FOR PROTECTING AGAINST DUPLICATION WITH A COLOR COPIER - Patent 0634029

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EP 0 634 029 A1

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(43)	Date of publication:
	18.01.1995 Bulletin 1995/03

(21)	Application number: 93909204.0

(22)	Date of filing: 29.03.1993

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International Patent Classification (IPC):

G03G 21/ 04^{( . )}

(86)	International application number:
	PCT/US1993/002948

(87)	International publication number:
	WO 1993/020484 (14.10.1993 Gazette 1993/25)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

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Priority:

01.04.1992 US 19920861712

(71)	Applicant: NOCOPI INTERNATIONAL, INC.
	Wayne, PA 19087 (US)

(72)	Inventor:
	GUNDJIAN, Arshavir Montreal, Quebec H4K 2A7 (CA)

(74)	Representative: Pfeifer, Hans-Peter, Dr.rer.nat.
	Patentanwalt Nowackanlage 15 D-76137 Karlsruhe D-76137 Karlsruhe (DE)

(54)	METHOD AND SECURITY SUBSTRATE FOR PROTECTING AGAINST DUPLICATION WITH A COLOR COPIER